TENS machine



FIG. 1 is a front view of a TENS machine showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The features shown in broken lines in FIGS. 1 through 6 are to show portions of the tens machine forming no part of the claimed design. 

CLAIM I claim the ornamental design for a TENS machine, as shown and described. 